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Finding the Fourth Proportional to 45,304.31, 67,926.46 and 21,615.51

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Solution

The fourth proportional to 45,304.31, 67,926.46 and 21,615.51 is: 32,408.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,304.31 : 67,926.46 = 21,615.51 : x
  2. Step 2: Convert to fraction form
    45,304.31/67,926.46 = 21,615.51/x
  3. Step 3: Cross multiply
    45,304.31x = 67,926.46 × 21,615.51
  4. Step 4: Simplify right side
    45,304.31x = 1,468,264,735.76
  5. Step 5: Solve for x
    x = 1,468,264,735.76/45,304.31
  6. Step 6: Final answer
    x = 32,408.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.